Car-truck.



PATENTED OCT. 30, 1906.

G'. LINDENTHAL. GAR TRUCK A-PPLIOATION FILED JANJG, 1905.

" No. 834,821. PAT'ENTED OCT. (30, 1906. 1

G. LINDENTHAL.

v GAR TRUCK. I PPPP IGATIOK FILED JAN-18. 1305.

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an a oz z Otto-mu Patent No. 799,606,

' scribed and then set forth GUSTAV LINDENTHAL, OF NEW YORK, N. Y.

CAR-TRUCK- Noj 834,821.

Specification of Letters Patent.

Patented ocaso, 1906.

- Application filed J anuary 16 1905. Serial No. 241,252.

'To all whom it may concern:

Be it known that I, GUSTAV LINDENTHAL, a citizen of the United States of America, and a resident of New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Oar-Trucks, of which the following is a specification.

This invention relates to improvements in that novel class of car-trucks shown, described, and claimed in my United States granted September 12, 1905, in which the car-body or the bolsters connected therewith are supported on two or more side rockers, which preferably support the entire weight of the car. As shown in said application, the said rockers are preferably formed with spherical ends, and there is no weight on the center bearing, so that under normal conditions the same amount of space is maintainedbetween the car-bolster and the truck-bolster.

My invention therefore-consists in its preferable embodiment in the improvement as will be hereinafter more articularly dey the claims at the end hereof.

In the accompanying drawings, which form part of this specification, Figure 1 is a side elevation of a car-truck constructed in accordance with my present invention. Fig. 2 is a plan view of the transom or truck-bob ster with the rockers or side bearing-columns removed. Fig. 3 is a vertical transverse section with the rockers in osition. Fig. 4 is a sectional detail of one o the depending or dropped pockets. Fig. 5 is a diagrammatic view of the centering device for the rockers. 'Fig. 6 is a vertical section of one of the'rockers. Figs. 7 and 8 are similar views of modified forms of rockers.

Referring now to the details of the drawings by numerals, 1 and 2 represent, respectively, the upper compression member and the diagonal member of a diamond-frame truck, and 3 indicates the lowermembei, andbetween the two upper members 1 and 2 and the lower member 3 may be secured the j ournal-boxes. (Not shown in the drawings.) As invention does not reside any of these parts, it is unnecessary to further describe them, except to state that in lieu of them any desired form of side frame may be employed. It is to be understood, of course, that, as shown in Fig. 2, there is one of these side frames on each side of the truck and that they are connected together by means of'a transom or truck-bolster of the configuration shown best in Fig. 3. As there illustrated, this transom or truck-bolster comprises two end portions, (designated by the numerals'7 and 8,) which are illustrated as bolted in position between the aforesaid compression and diagonal members 1 and 2 of the side frames, the bolts being designated by the numerals 9 and 10, and fillers or collars 11 and 12 being employed, as indicated in Figs. 1 and 3, to fill up the space between the top of the ends 7 and 8 and the under sides of the com ression member 1, as clearly shown in my d fawings. Just inside of each of the end portions. 7 and 8 of the transom or truck-bolster, which is preferably cast in one integral piece, are formed dropped or depending pockets 15 and 16, and the body of the transom or bolster extends between these pockets-and connects them together, as clearly illustrated in Fig. 3. As'before described, these transom or truck-bolsters are cast of one integral piece of metal, and in order to lighten them as much as possible they are formed hollow, as indicated, and also with openings in the sides wherever this is possible without weakening the castings. Thus in each of the dropped or depending pockets 15 and 16 will be found openings in the sides and bottom, and the openings 17 and 18 in the bottom of these dropped or depending pockets perform two functionsto wit, first, to receive a wearplate 20 for a purpose to be hereinafter described, and, second, to permit moisture or water that might otherwise collect in the pockets to escape and drop to the ground.

The upper faces of the depending or dropped pockets 15 and 16 are also provided with ribs 21 and 22, which in addition to serving to strengthen these pockets, also serve as retaining-walls for the wear-plates 20, as will be clearly seen in Fig. 2. By em loying these integral ribs 21 and 22 and by f orming the lower surface of the wear-plates 20 with a projecting central portion 24 (shown in Fig. 4) the wear-plates need no other'means for retaining them-in position. It will therefore be manifest that when necessary the said wear-plates may be easily removed and replaced with new ones, if required.

The aforesaid dropped or depending pockets are for the purpose of receiving rockers or columns to be interposed between bearingplates on the bottom of the car-bolster and the wear-plates 20 in the transoms or truckrocker or support consists, preferably, of two members 30 and 31, adapted to telescope one within the other. The first of these parts (30) is hollow and is formed at its upper end with a ball 33, working within a socket 34, se-

cured to the car-bolster, so that when the carbolster rolls or rocks on the rockers or supports the rocker will roll on a circle, the center of which is also the center of the ball-andsocket joint, and in order to attain one of the objects of my invention I prefer to form the lower member 31 of the two-part rocker or support with a spherical surface, which is so formed that if the sphere were complete the center of it would also be the center of the aforesaid ball-and-socket joint. It will thus be seen that when the car-bolster rolls on the rockers or supports there will be the same distance maintained between the car and truck-bolsters at all oints of its movement. In order to attain t e best results, I insert very heavy coiled springs of the usual type between the two parts 30 and 31 of the rocker or support, and in a car of eighty thousand pounds capacity the capacity of the springs in each of these rockers or supports amounts to thirty thousand pounds. This is suflieient to permit a sli ht yield and yet for all practical purposes eep the two members 30 and 31 in the proper relative positions to maintain under normal conditions the proper dis tance between the bolsters to prevent the carbolster from rising and falling. As a modified form I may construct these rockers or supports as indicated in Fig. 7, where both members 35 and 36 are formed with spherical ends, the curvature of the said ends being such that under normal conditions both ends are described by the same sphere.

Another modification is illustrated in Fig. 8, where the rocker or support is shown in one integral piece 37, with a ball 58 at its upper end working within a socket 39, and the other end is formed spherically and of such curvature that the sphere described by it has as its center the center of the ball-and-socket joint.

Having described several different forms of rockers, I will now turn again to the east transoms or truck-bolsters. In orderto enable the car to roll to the desired extent on the rockers or supports, I prefer to form each of the dro ped pockets 15 and 16 of the peculiar shape i lustrated in Fig. 4. As there illustrated, the side walls diverge upwardly, so as to make the dropped pockets wider at their upper portions than at their bottoms. Thus the car can swing to the maximum amount and the rocker or support not be interfered with in its movements. In order to properly center the rockers or supports, I prefer to employ a centering device 40, which may be screwed into the wearing-plate in the bottom of the dropped pockets, and this centering device is adapted to fit within a central aperture in the bottom of the rocker or support, and no matter how much or how little the rocker moves on its bottom the centering device will coact with it to insure its return to the proper position. I have found in actual ractice that this centering device is not essential but I prefer to use it for manifest reasons.

In operation the whole weight of the car is carried by the two (or more) rockers at each. end of the car and transmitted by them to the truck-bolsters and thence to the journals, and by employing the extended rockers or columns with the spherical ends or bases a rolling movement results, which is of uniform evenness and permits the car to take the curves with the greatest ease, as practically the same distance is maintained between the bolsters at all times.

What I claim as new is 1. In a car-truck, the combination with. an integral truclebolster, of elongated side bearin columns or rockers resting on said integral bo lster and forming the entire support of the car-body, each of said columns or rockers having a spherical end permitting rolling movement.

2. In a car-truck, the combination with a truck-bolster or transom, of elongated side bearing columns or rockers resting on said bolster or transom, said columns or rockers forming the sole support of the car-body and. formed in sections with springs between them, each of said columns or rockers having a spherical end permitting rolling movement.

3. In a car-truck, the combination of a transom or bolster having a drop )ed pocket at each end thereof, elongated roclrers seated in said pockets and each formed with a spherical end, said elongated rockers being formed of two sections with springs between them.

4. In a car-truck, the combination of a transom or bolster having no weight on its center pivot, elongated side bearing columns or rockers carrying the whole load and rest ing on said transom or bolster and permitting the car-bolster to freely rock thereon, the said elongated columns or rockers being formed in sections with springs between them, each of said columns or rockers having a spherical end permitting rolling movement.

5. In a ear-truck, the combination of a transom or bolster, elongated side bearing columns or rockers resting on. said transom or bolster permitting the carbolster to freely rock upon said elon ated side bearingcolumns, each of the latter havin g a universal or ball-and-socket joint at one end, and its I other end formed spherical.

6. In a car-truck, the combination of a transom or bolster, elongated side bearing columns or rockers resting on saidtransom or bolster and permitting the car-bolster to freely rock on said elongated side bearingcolumns, the latter being formed in sections with springs between them, one of said sections having a universal or balland socket joint and the other section having a spherical end.

7. In a car-truck, the combination of a transom or bolster having pockets therein, elongated rockers resting in said pockets and supporting the car, said elongated rockers eac having a universal or ball-and-socket joint at one end and its other end formed spherical.

8. In .a car-truck, the combination of a transom or bolster having pockets therein,

elongated rockers seated in said pockets and supporting the car, said rockers being formed in sections with springs between them, one of said sections having a universal or balland-socket joint at its end and the other sec tion a spherical end.

9. In a car-truck, the combination of a transom or bolster having dropped pockets near the ends thereof, said transom or bolster and its pockets being formed integral and elongated rockers or supports seat-ed in said pockets, each havin a spherical end.

10. In a car-true the combination of a transom or bolster having dropped pockets near the ends thereof, said transom or bolster and its pockets being formed integral, and rockers or supports seated in said pockets and supporting the car, said rockers having a' universal joint at one end and the other end formed spherical.

11. In a car-truck, the combination of a transom or bolster having dropped pockets near the ends thereof, said-transom and its pockets being formed integral, and elongated rockers seated in said pockets and supporting the car, said elongated rockers being formed in sections with springs between them and one of said sections having a spherical end.

12. In a car-truck, the combination of a transom or bolster having dropped pockets near the ends thereof, said transom and its pockets being formed integral, and elongated rockers seated in said pockets and supporting the car, said elongated rockers being formed in sections with springs between them, one of said sections having a universal or ball-andsocket joint and the other section having a spherical end.

13. In a car-truck, the combination with an integral truck-bolster, of elongated side bearing columns or rockers resting on said integral bolster and forming the entire support of the car-body, each of said columns or rockers having a spherical end permitting diameter is at least the length of the rocker,

said elongated columns or rockers being formed of sections with springs between them.

15. In a car-truck, the combination with a transom or bolster, of elongated side bearing columns or rockers resting on said transom or bolster and permitting the car-body to roll thereon, said columns or rockers com prising sections having springs between them, one of said sections having a spherical end of such curvature that it describes a circle or sphere whose diameter is at least the length of the rocker.

16. In a car-truck, the combination with a transom or bolster, of elongated side bearing columns or rockers resting on said tran-.

som or bolster and permitting the car-body to roll thereon, said columns or rockers being provided with springs within them, each of said columns or rockers having a spherical end permitting rolling movement.

17. In a car-truck, the combination with a transom or bolster, of elongated side hearing columns or rockers resting on said transom or bolster and permitting the car-body to roll thereon, said columns or rockers comprising sections with springs between them, anfil one of said sections having a spherical en 18. In a car-truck, the combination with a transom or truck-bolster having dropped pockets, of elongated side bearing columns or rockers resting in said ockets and permitting the car-body to roll thereon, said rockers comprising sections having springs between them, and one of said sections having a spherical end.

19. Ina car-truck, the combination with a transom or bolster having a pocket at each end thereof, and elongated rockers or supports seated in said pockets and formed of sections having springs between them; one

of said sections having a spherical end and the said pockets having their side walls diverged upwardly to permit the rolling or rockin o the rockers or supports.

20. n a car-truck, the combination with a transom or bolster having a pocket at each end thereof, wear-plates seated in said pockets, and elongated rockers or supports seated,

in said pockets on said wear-plates and comprisin sections with springs between them; one 0 said sections having a spherical end and the said pockets having their walls diverged upwardly to permit the rolling or rocking of the rockers or supports.

21. An elongated rocker or support having at one end thereof one element of a balland-socket joint and its other end formed spherically, said spherical end being of such a curvature that it describes a circle or sphere Whose diameter is at least the length of the rocker, substantially as described.

22. A rocker or support formed of tWo sections, With springs between them, one section being provided with one element of a ball-and-socket joint and the other section having a spherical end of such curvature that it describes a circle or sphere Whose diameter is at least the length of the rocker, substantially as described.

Signed by me at New York, N. Y., this 13th day of January, 1905.

GUSTAV LINDENTHAL.

Witnesses:

M. B. SANFORD, G. REVAY. 

